317078420 has 48 divisors (see below), whose sum is σ = 691579728. Its totient is φ = 122019840.

The previous prime is 317078413. The next prime is 317078453. The reversal of 317078420 is 24870713.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 6895876 + 310182544 = 2626^2 + 17612^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57212 + ... + 62508.

It is an arithmetic number, because the mean of its divisors is an integer number (14407911).

Almost surely, 2^317078420 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 317078420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (345789864).

317078420 is an abundant number, since it is smaller than the sum of its proper divisors (374501308).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

317078420 is a wasteful number, since it uses less digits than its factorization.

317078420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5420 (or 5418 counting only the distinct ones).

The product of its (nonzero) digits is 9408, while the sum is 32.

The square root of 317078420 is about 17806.6959315871. The cubic root of 317078420 is about 681.9024149239.

The spelling of 317078420 in words is "three hundred seventeen million, seventy-eight thousand, four hundred twenty".